110 lines
2.8 KiB
C
110 lines
2.8 KiB
C
/***************************************************************************
|
|
* __________ __ ___.
|
|
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
|
|
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
|
|
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
|
|
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
|
|
* \/ \/ \/ \/ \/
|
|
* $Id$
|
|
*
|
|
* Copyright (C) 2002 by Björn Stenberg
|
|
*
|
|
* All files in this archive are subject to the GNU General Public License.
|
|
* See the file COPYING in the source tree root for full license agreement.
|
|
*
|
|
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
|
|
* KIND, either express or implied.
|
|
*
|
|
****************************************************************************/
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <stdbool.h>
|
|
#include "fat.h"
|
|
#include "dir.h"
|
|
#include "debug.h"
|
|
|
|
static DIR thedir;
|
|
static struct dirent theent;
|
|
static bool busy=false;
|
|
|
|
DIR* opendir(char* name)
|
|
{
|
|
char namecopy[256];
|
|
char* part;
|
|
char* end;
|
|
struct fat_direntry entry;
|
|
struct fat_dir* dir = &(thedir.fatdir);
|
|
|
|
if ( busy ) {
|
|
DEBUGF("Only one open dir at a time\n");
|
|
return NULL;
|
|
}
|
|
|
|
if ( name[0] != '/' ) {
|
|
DEBUGF("Only absolute paths supported right now\n");
|
|
return NULL;
|
|
}
|
|
|
|
if ( fat_opendir(dir, 0) < 0 ) {
|
|
DEBUGF("Failed opening root dir\n");
|
|
return NULL;
|
|
}
|
|
|
|
strncpy(namecopy,name,sizeof(namecopy));
|
|
namecopy[sizeof(namecopy)-1] = 0;
|
|
|
|
for ( part = strtok_r(namecopy, "/", &end); part;
|
|
part = strtok_r(NULL, "/", &end)) {
|
|
int partlen = strlen(part);
|
|
/* scan dir for name */
|
|
while (1) {
|
|
if (fat_getnext(dir,&entry) < 0)
|
|
return NULL;
|
|
if ( !entry.name[0] )
|
|
return NULL;
|
|
if ( (entry.attr & FAT_ATTR_DIRECTORY) &&
|
|
(!strncmp(part, entry.name, partlen)) ) {
|
|
if ( fat_opendir(dir, entry.firstcluster) < 0 ) {
|
|
DEBUGF("Failed opening dir '%s' (%d)\n",
|
|
part, entry.firstcluster);
|
|
return NULL;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
busy = true;
|
|
|
|
return &thedir;
|
|
}
|
|
|
|
int closedir(DIR* dir)
|
|
{
|
|
busy=false;
|
|
return 0;
|
|
}
|
|
|
|
struct dirent* readdir(DIR* dir)
|
|
{
|
|
struct fat_direntry entry;
|
|
|
|
if (fat_getnext(&(dir->fatdir),&entry) < 0)
|
|
return NULL;
|
|
|
|
if ( !entry.name[0] )
|
|
return NULL;
|
|
|
|
strncpy(theent.d_name, entry.name, sizeof( theent.d_name ) );
|
|
theent.attribute = entry.attr;
|
|
theent.size = entry.filesize;
|
|
theent.startcluster = entry.firstcluster;
|
|
|
|
return &theent;
|
|
}
|
|
|
|
/*
|
|
* local variables:
|
|
* eval: (load-file "../rockbox-mode.el")
|
|
* end:
|
|
*/
|